cyclopropylmethyl 4-piperidylcarbamate 、 5-(2-chloroethoxy)-3,4-dihydro-8-methoxycarbostyril 以
piperidin-4-yl-carbamic acid isobutyl ester 为溶剂,
生成 8-methoxy-3,4-dihydro-5-[2-(4-((cyclopropylmethoxy)carbonylamino)-1-piperidyl)ethoxy]carbostyril hydrochloride